Results 71 to 80 of about 43,528 (269)

Molecular Dynamics Simulations of HEMA-Based Hydrogels for Ophthalmological Applications

Molecules
The structural and dynamic properties of poly(2-hydroxyethyl methacrylate) (PHEMA) and poly(N-vinylpyrrolidone-co-2-hydroxyethyl methacrylate) [P(VP-co-HEMA)], dry and as hydrogels, were studied by molecular dynamics simulations. The P(VP-co-HEMA) chains
Katarzyna Filipecka-Szymczyk, Malgorzata Makowska-Janusik, Wojciech Marczak   +2 more
doaj   +1 more source

Long-term bond strength, degree of conversion and resistance to degradation of a HEMA-free model adhesive

Brazilian Journal of Oral Sciences, 2014
Aim: To evaluate the long-term bond strength, degree of conversion and resistance to degradation in ethanol of HEMA-containing and HEMA-free model adhesive resins of a three-step etch-andrinse adhesive system. Methods: The superficial dentin of 16 bovine
Fabrício Mezzomo Collares, Vicente Castelo Branco Leitune, Fernando Freitas Portella, Fabrício Aulo Ogliari, Susana Maria Werner Samuel   +4 more
doaj   +1 more source

Aqueous PEG-HEMA hydrogel synthesis using gamma irradiation for wound dressing applications

, 2005
Chronic wounds are an important medical issue. Current wound dressings do not fully address all of the relevant issues as many are primarily antimicrobials, which do not attend to potential growth factor deficiencies. In contrast, there are several types
Rayment, Erin A., George, Graeme A.
core  

Menopause hormone therapy in women with cardiovascular risk factors or established ischemic heart disease: A joint FIGO and WHF position paper

International Journal of Gynecology &Obstetrics, EarlyView.
Integrated approach to menopausal hormone therapy in women with cardiovascular risk factors or established ischemic heart disease, from early treatment initiation and risk stratification to individualized therapy, multidisciplinary follow‐up, and health‐system recommendations.
Chiara Benedetto, Martha Gulati, Suvarna S. Khadilkar, Angela H. E. M. Maas, Federica Frezet, Gláucia Maria Moraes de Oliveira, Andrea R. Genazzani, Hema Divakar, Athena Poppas, on behalf of the World Heart Federation (WHF) and the International Federation of Gynecology and Obstetrics (FIGO)   +9 more
wiley   +1 more source

RESIN MONOMERS TEGDMA, HEMA AND SELFT-ETCHING ADHESIVES DON'T REGULATE IL6 GENE EXPRESSION IN HPCS

, 2014
OBJECTIVES The evolution of dental materials used in clinical practice, is a research area of considerable involvement. The resin monomers are the most commonly utilized materials in restorative dentistry; one of the outstanding problems, in the ...
CASTIELLO G, RICCITIELLO, FRANCESCO, SIMEONE M, PROCINO A., VALLETTA A, RIVIECCIO V   +5 more
core  

Thermoresponsive Gel‐Yarn Composites Enable Low‐Temperature Tensile Actuation in Twisted and Coiled Polymer Artificial Muscles

Macromolecular Rapid Communications, EarlyView.
Thermoresponsive gel–yarn composites integrate poly(MAA‐co‐OEGMA) hydrogels with twisted and coiled polyester yarns to enable reversible tensile actuation between 25°C and 50°C. Hydrogel swelling and deswelling generate internal stresses that drive lengthwise actuation, achieving isotonic strains up to 39%.
Sinmisola Aloko, Geoffrey Spinks, Javad Foroughi   +2 more
wiley   +1 more source

A Sequential One‐Pot Block Copolymer Synthesis: Toward Mesoporous Carbon Materials for Selective CO2 Adsorption

Macromolecular Rapid Communications, EarlyView.
A sequential one‐pot photo‐iniferter RAFT method greatly simplifies the synthesis of PAN‐based block copolymers, offering quick access to hierarchically porous, N‐doped carbon membranes. This scalable and reliable process allows for easy fabrication of functional materials important for carbon capture applications.
Björn Schmidt, Stefan Heißler, Alexei Nefedov, Jakob Becker, Udo Geckle, Simon Buchheiser, Frank Rhein, Tao Chen, Patrick Théato, Martina Plank   +9 more
wiley   +1 more source

Anti‐Inflammatory Drugs‐Modified Poly(2‐Hydroxyethyl Methacrylate) Particles as Anticancer Drug Carriers

Macromolecular Materials and Engineering
In this work, 2‐hydroxyethyl methacrylate (HEMA) is modified by ibuprofen and diclofenac as anti‐inflammatory drugs to synthesize ibuprofen‐HEMA and diclofenac‐HEMA monomers. Then, poly(ibuprofen‐HEMA‐co‐HEMA) (PIHH), poly(diclofenac‐HEMA‐co‐HEMA) (PDHH),
Shima Ghaffari, Marzieh Golshan, Kiyumars Jalili, Mehdi Salami‐Kalajahi   +3 more
doaj   +1 more source

The Feasibility and Functional Performance of Ternary Borate-Filled Hydrophilic Bone Cements: Targeting Therapeutic Release Thresholds for Strontium

Journal of Functional Biomaterials, 2017
We examine the feasibility and functionality of hydrophilic modifications to a borate glass reinforced resin composite; with the objective of meeting and maintaining therapeutic thresholds for Sr release over time, as a potential method of incorporating ...
Kathleen MacDonald, Richard B. Price, Daniel Boyd   +2 more
doaj   +1 more source

Tailored for Binding: Alanine‐Modified Poly(1‐Naphthylamine) Targets Serum Albumins

Polymer Engineering &Science, EarlyView.
Alanine modified poly(1‐naphthylamine). ABSTRACT This study presents a new approach for modifying the structural and functional properties of poly(1‐naphthylamine) (PNA) by incorporating the amino acid alanine (Ala) in different molar proportions (80/20, 50/50, and 20/80 for PNA/Ala) through an ultrasound‐assisted polymerization process.
Nuzhat Nabi, Ufana Riaz
wiley   +1 more source